DE102007002946B4 - Method for producing a seal, in particular for a motor vehicle - Google Patents

Method for producing a seal, in particular for a motor vehicle Download PDF

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Publication number
DE102007002946B4
DE102007002946B4 DE102007002946A DE102007002946A DE102007002946B4 DE 102007002946 B4 DE102007002946 B4 DE 102007002946B4 DE 102007002946 A DE102007002946 A DE 102007002946A DE 102007002946 A DE102007002946 A DE 102007002946A DE 102007002946 B4 DE102007002946 B4 DE 102007002946B4
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DE
Germany
Prior art keywords
sealing
attachment
sealant
foam
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE102007002946A
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German (de)
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DE102007002946A1 (en
Inventor
Reiner Dunstheiner
Johannes Fellner
Kai Uwe Kapler
Stephan Müller
Ulrich Seidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metzeler Automotive Profiles GmbH
Metzeler Automotive Profile Systems GmbH
Original Assignee
Metzeler Automotive Profiles GmbH
Metzeler Automotive Profile Systems GmbH
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Filing date
Publication date
Application filed by Metzeler Automotive Profiles GmbH, Metzeler Automotive Profile Systems GmbH filed Critical Metzeler Automotive Profiles GmbH
Priority to DE102007002946A priority Critical patent/DE102007002946B4/en
Publication of DE102007002946A1 publication Critical patent/DE102007002946A1/en
Application granted granted Critical
Publication of DE102007002946B4 publication Critical patent/DE102007002946B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/20Sealing arrangements characterised by the shape
    • B60J10/24Sealing arrangements characterised by the shape having tubular parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/30Sealing arrangements characterised by the fastening means
    • B60J10/32Sealing arrangements characterised by the fastening means using integral U-shaped retainers

Abstract

Method for producing a longitudinally extending seal (10), in particular for a motor vehicle,
the seal (10) comprising a fixing portion (30) and a sealing portion (20),
wherein the attachment portion (30) on a rigid component (50) can be fixed and
wherein a sealant (40) is provided for sealing a portion between the rigid member (50) and the mounting portion (30), the method comprising the steps of:
a) extruding the seal (10);
b) applying a foam material based on polyurethane as a sealant (40) on the mounting portion (30), so that the sealant (40) is integrally or positively connected to the mounting portion (30);
c) curing the sealing compound (40) at least to such an extent that the sealing compound (40) can be applied to the rigid component (50) so as to be free of a material connection with the rigid component (50);
wherein the foam material for curing at a temperature of about 50 ° C to about ...

Description

  • The The present invention relates to a process for the preparation of a extending in a longitudinal direction Seal, especially for a motor vehicle, wherein the seal has a mounting portion and a sealing portion. The attachment section can be fixed to a rigid component. Furthermore, a sealant for sealing a region between the rigid component and provided the attachment portion.
  • A Such seal is used in motor vehicles for sealing in the area of body openings for use. To attach the seal is a mounting section provided, usually formed in a U-shaped cross-section is and provides a receiving channel, so that the attachment section is attachable to a body flange as a rigid component. A connected to the attachment portion, elastically deformable Seal section is, for example, in the case of a movable at the body opening connected component in its closed position on the moving component. Such a trained seal ensures for example, the sealing of a vehicle door or a tailgate.
  • In order to prevent the penetration of moisture or water through the receiving channel in a vehicle interior facing region between the body flange and the mounting portion, it is for example from the DE 195 31 167 A1 Known after the extrusion of the sealing strand to introduce a sticky sealant, such as butyl, in an area between the body flange and mounting portion in the receiving channel. After attaching the attachment portion on the body frame, the free end of the frame is firmly bonded to the sealant. The sealant thus contributes to the attachment of the attachment portion to the frame.
  • adversely In this case, that the sealant after insertion into the receiving channel viscous respectively is sticky. As a result, resulting in the subsequent cutting of the Sealing strands problems due to this stickiness, it yields inevitably a dirty cut. Consequently, an increased cleaning effort is necessary. It also comes later Connecting the ends of the sealing strip to an increased workload as a result of uneven training the ends. Similar Problems arise also in the context of any repairs in which the Sealant must be deducted from the body flange. Since the body flange is bonded to the Butylmasse, becomes a raised one Required effort to pull off the seal at all. To the Others remain after peeling a part of the butyl compound stick to the flange outer surface. Consequently, the seal can not be readily plugged onto the flange. In advance namely the remains of the sealant material remaining on the flange are removed become.
  • Furthermore, it is from the DE 10 2004 050 777 A1 known, polyurethane-based foam material both for the purpose of sealing and for supporting a sealing portion against a body panel enforce. For the production, the seal comprising a fastening section and a sealing section is first extruded as an extruded profile and cut to the desired length. Subsequently, the profile is inserted into a two mold halves comprehensive mold for vulcanization. The molding tool has, in addition to a region for receiving the profile, a further mold space in which a sealing compound can be introduced. Thus, during the vulcanization of the profile, a reaction mixture of polyurethane base can be injected as a sealant in the other mold cavity and molded in this way to the profile.
  • It has proven to be disadvantageous that a comparatively high Material expense is required to clear the space between sheet metal and seal portion to be filled with the foam material, so that in addition to the sealing effect and a supporting action by the foam material can be achieved. Furthermore, the manufacturing method is due to the production by means of a mold not for long Sealant tapes. In addition, here also requires any subsequent dismantling of the sealing profile an elevated one Workload.
  • The GB 1,137,770 discloses an elastomeric weather strip having a window frame receiving channel and a window receiving channel. For sealing a window frame introduced into the window frame receiving channel, a sealing strip is introduced in the window frame receiving channel. The sealing strip is made of polyurethane foam or similar material. To fix the sealant in the window frame receiving channel this can either be introduced by means of an adhesive in the channel or the sealant is positively held in the window frame receiving channel.
  • The DE 10 2004 050 777 A1 discloses a sealing profile and a method for its production. The sealing profile comprises a first elastomeric sealing region and a second thermoplastic-elastomeric sealing region. The first sealing area is made of an ethylene-propylene-diene chew Schuk extruded and the second sealing area is foamed to the first sealing area by means of a PUR-based foam material. The two sealing regions are fixed positively to a striking plate of the vehicle and a window frame cover.
  • to Production of the sealing profile is first the sealing area as an extruded profile extruded and cut to length. Subsequently, will the sealing area in a mold comprising two mold halves inserted for vulcanization. The mold has next to a Area for receiving the sealing area on a further mold space, in which the PUR-based foam material to form the second Sealing area is introduced. Subsequently, both sealing areas vulcanized in the mold.
  • The US 5,415,822 discloses a method of making the composite extrudate. The gasket comprises a sealing portion and a fixing portion. The attachment portion has two U-shaped recesses, wherein a recess is formed as a receiving channel and is reinforced with a metallic reinforcement carrier. In the receiving channel several sealing lips protrude. At the foot of the mounting portion two more sealing lips are attached. The attachment section is extruded from EPDM. The sealing portion and the retaining lips are made of a foamed rubber and are integrally connected to the attachment portion. In addition, a circular tip is foamed on one of the sealing lips. Furthermore, the attachment portion is provided with a thermoplastic layer.
  • to Preparation of the seal is first the attachment section and the sealing portion coextrudes and still in a hot state passed a second extruder containing the thermoplastic layer extruded on the attachment portion.
  • In the DE 29 24 574 it is a U-shaped sealing strip. The U-shaped sealing strip comprises a reinforcing beam embedded in a flexible covering material and two clamping ribs projecting into the U-shaped channel. Furthermore, the sealing strip on the inside of the U-shaped receiving channel on a coating of a thermoplastic material of polyamide and / or ethylene-vinyl acetate. For mounting, the sealing strip is mounted on a flange. Subsequently, the sealing strip is heated and the material expands between the inner surface of the sealing strip and the flange such that the remaining gap is completely filled with the material. As a result, the material seals the flange against rust and simultaneously protects it from further corrosion.
  • The DE 36 27 537 A1 discloses a glass sheet which is provided with an elastic sealing profile. To seal the glass pane, a tubular sealing profile and a profile strand are inserted between the glass pane and a sealing flange. The extruded profile is extruded from a moisture-curing one-component polyurethane or from a two-component reaction adhesive based on polyurethane on the frame-like covering which is firmly connected to the glass. The profile strand is U-shaped, so that the sealing profile can be positively inserted into a channel-shaped cavity of the profile strand. The sealing profile has a tubular portion and a portion having a cross section of the channel-shaped cavity corresponding cross-section.
  • The DE 10 2005 013 005 A1 discloses a gasket for sealing a body of a motor vehicle. The gasket comprises a sealing portion and a fixing portion. The attachment portion is reinforced with a carrier. In the attachment section protrude more retaining lips. A first retaining lip and a second defines a first volume into which a first adhesive component is introduced. Below the first volume, a first retaining lip and a second retaining lip define a second volume in which a second adhesive component is incorporated. To fix the gasket to a flange, the gasket is slipped onto the flange, thereby deforming the retaining lips such that the first adhesive component and the second adhesive component are mixed together and eventually unfold their adhesive effect.
  • The DE 696 06 564 T2 discloses a weather strip especially for window or door frames. The weather strip includes a base portion and a gripping member. For improved sealing between a frame and the gripping element, a sealing element is introduced. The sealing element is assigned to the gripping element by continuous casting and consists of butyl or other material. The material is selected such that the sealing element does not stick to the frame. Accordingly, the sealing strip can be easily removed without leaving adhesive residue.
  • The invention has for its object to provide a method for producing a seal with which an easy to manufacture, easy to install and in particular multiply mount and dismantle seal can be achieved at which is also sealed the area between mounting portion and rigid component.
  • To achieve this object, a method for producing a seal extending in a longitudinal direction, in particular for a motor vehicle, is provided, wherein the seal comprises the features mentioned above and the method comprises the following steps:
    • a) extruding the gasket;
    • b) applying a foam material based on polyurethane as a sealant on the mounting portion, so that the sealant is materially or positively connected to the mounting portion,
    • c) curing the sealant at least to such an extent that the sealant is sealingly engageable with the rigid member sealingly from a material bond with the rigid member, wherein the foam material is heat treated for curing, and wherein the foam material at a temperature of about 50 ° C is heat treated to about 150 ° C,
    • d) wherein the process steps a) to c) are carried out successively and in each case in a continuous flow process along the longitudinal direction.
  • The inventive method based on the knowledge, after the extrusion of the seal, a foam material polyurethane-based sealant on the attachment section and for sealing the area between the rigid component and to apply the attachment portion. Subsequently, a curing of the foam material, the degree of curing should be at least so high that the attachment section or do not stick the sealant to the rigid component. The foam preferably has a substantially closed-cell structure up and is compared to conventional Sealing material, such as butyl, at least much less sticky. By curing the foam material lacks this tackiness at least to such an extent that in a possible removal of the seal from the rigid Component no residues of the sealant remain on the rigid component. Preferably, the foam material is not completely cured after curing sticky. In this way, in the form of a sealing strand manufactured seal can also be easily cut to length, without it being mentioned at the beginning Impurities and problems in further handling comes.
  • to Production of the foam per se is preferably mechanical Foam used, wherein the sealant with gas, in particular compressed air, is mixed as a blowing agent. This is particularly suitable a one-component polyurethane foam. Already by the pressure difference at Applying the mixture to the attachment portion forms the foam out. In addition, already at the exit from the Application unit by the environmental conditions, such as the room temperature or the humidity, a partial hardening of the Foam material instead.
  • With the method according to the invention will also contamination of the tools for further processing the seal, such as for cutting the sealing strip, avoided. Furthermore, the sealing profile can be repeated on a body flange be plugged and unplugged without causing pollution the flange comes and without the sealing compound in its sealing function limited becomes. In addition, the use of the polyurethane foam material allows a Reducing the weight of the seal. With the targeted hardening of the Foam material will further reduce the duration of the Manufacturing process achieved.
  • The individual process steps can successively be performed as continuous flow processes, so that the entire process be carried out as a continuous process can.
  • advantageous Embodiments of the method according to the invention are in the claims 2 to 6 described.
  • Around to achieve an acceleration of the process, the foam material for curing heat treated become. Advantageously, the heat treatment of the foam material takes place by means of microwaves. In this context, it turns out as advantageous when the foam material at a temperature from about 80 ° C up to about 120 ° C, heat treated becomes. Due to the use of microwaves for heat treatment only the foam material is excited and cured, whereas the remaining Components of the seal remain virtually untouched. In this way the material properties of the foam material are improved. For example, the stickiness of the sealant can be reduced be to adhere the rigid component to the sealant avoid. At the same time, the material properties and shape the rest Components of the seal are not affected. In other words the sealing and fixing sections are not deformed, but retain their desired shape created by the extrusion process. Alternatively, the foam material can also be cured by means of UV light.
  • In development of the invention Method is proposed that the foam material is a one-component polyurethane foam. In this way, it is not necessary to stock several base materials to produce the foam. In addition, such a one-component material can be foamed up by mechanical foaming with comparatively little effort. Alternatively, a two-component or a multi-component polyurethane foam can be used.
  • advantageously, In step a), the sealing and fastening sections are formed coextruded. this leads to to further simplify the production and the step the application of the foam material can be followed directly. Overall, you can all process steps are executed as a continuous process.
  • moreover a seal is made by the method described above, in particular for sealing the body of a motor vehicle Application finds. The extrusion manufactured seal comprises a fixing portion and a sealing portion, wherein the attachment portion has a receiving channel for receiving a rigid Component has. The attachment portion is at least a projecting into the receiving channel retaining lip laying down the attachment portion provided on the rigid component. A Sealant made of a foam material based on polyurethane for sealing a region between the rigid component and the attachment portion cohesively or positively with the Attached attachment section. In addition, the attachment section at least one first projecting into the receiving channel projection for Mounting the sealant on the mounting portion and for positioning of the attachment portion to the rigid component.
  • Of the projecting into the receiving channel projection serves as a Centering cam to the attachment of the attachment section on to facilitate the rigid component and a central arrangement of the To reach attachment portion on the rigid component. To the others possible the projection at least partially a stop of the sealant the attachment portion, preferably at the base of the attachment portion. Furthermore, the projection can also be used for positioning the application unit for the Foam material, in particular along the longitudinal direction of the sealing strip, and be used for shaping the sealant material conditions. The sealant can with the at least one projection cohesively and / or form-fitting be connected. The projection can in case of eventual disassembly later the seal of the rigid component pulling off the sealing compound strand prevent from the attachment portion.
  • The Polyurethane-based foam material may be directly after extrusion the seal are applied to the mounting portion. moreover can simpler profile geometries for that rigid component can be used and the shell tolerances designed generous become. All this leads for further time and cost savings.
  • Either the first attachment leg and the second attachment leg are each provided with a projection. The two projections form expediently a free gap through which the rigid component is in the final position within led the receiving channel can be. It is advantageous if at least one projection a weird one Having guide surface, to threading to facilitate.
  • The created by the method according to the invention Seal can be applied multiple times to the rigid component, in particular one Body flange, plugged and unplugged without it comes to a contamination of the rigid component and without that the sealant is limited in their function. In addition, a weight saving achieved.
  • Of the Attachment section has to form the receiving channel a first attachment leg, a second attachment leg and one the first mounting leg and the second mounting leg interconnecting base on. The sealant is with the base and / or connected at least one mounting leg. So can the sealant for example, in the through the base and at least partially through introduced the mounting leg formed base of the receiving channel become. The associated Process step of the sealing compound is thereby in continuous Way, wherein a predetermined amount of sealant along the longitudinal direction of the sealing strand in the area of the bottom of the receiving channel lathered becomes.
  • Of the Attachment section has a second projecting into the receiving channel Projection on, wherein the first projection and the second projection are arranged and shaped such that a free gap between the projections is formed for positioning of the rigid component. The free End of the projection has an inclined guide surface for proper positioning the attachment portion on the rigid component.
  • The first projection is on the first attachment leg and the second projection on the second attachment leg as well as essen- Chen arranged opposite to the first projection. As a result of the arrangement of the projections on the attachment legs, the foam material can for example also be introduced in the region of the bottom of the receiving channel, so that only a positive retention of the sealant is achieved at the attachment portion. After attaching the sealing strip on the rigid component whose end face presses the sealing surface largely elastic and the sealant is pressed against the base of the mounting portion. If the sealing strip should be disassembled, the projections prevent the sealing compound, which is merely positively retained from the flange after removal of the sealing strip, from being pulled out of the receiving channel. The sealant must therefore not be renewed when re-attaching the sealing strip on the flange. Even if a renewal of the sealing compound strand should be necessary, this is due to the only positive retention in a simple way enffernbar and a new sealing compounds strand applied by means of a Durchlaufprozeses on the mounting portion.
  • alternative the sealant is firmly bonded to at least one of the projections. This is suitable for example the case that one or two protrusions arranged on the base are and largely parallel to the mounting legs in the Receiving channel protrude.
  • The Foam material is a one-component polyurethane foam or a two-component polyurethane foam.
  • Around a sufficient frictional Connection of the attachment portion with the rigid component, in particular with a body flange, to enable the first mounting leg and / or the second mounting leg with a plurality of in the receiving channel protrude retaining lips provided. In terms of attachment on the rigid member is the attachment portion by a Reinforced reinforcing beam. This preferably metallic reinforcement carrier increases the rigidity of the attachment portion.
  • Of the Seal portion and / or the attachment portion are made of a elastomeric material, preferably of a thermoplastic elastomer or ethylene-propylene-diene rubber extruded.
  • Of the Attachment section is by coextrusion with the seal section connected. With regard to the sealing function of the seal is the Seal section with at least one hollow chamber and / or at least provided a sealing lip.
  • The Sealant is free of a material connection with the rigid Component sealing to the rigid component. The rigid part becomes formed by a flange. The flange is compared with his Narrow to the side surfaces End face sealing, but not sticking to the sealing surface of the Sealant and presses this easily. The sealant can cohesively and / or positively with be connected to the attachment portion.
  • following The invention will be further explained with reference to the drawings. Show schematically:
  • 1 a cross section through a first seal for sealing a body of a motor vehicle before mounting on a frame of the body;
  • 2 the cross-section according to 1 after putting on the body frame;
  • 3 a cross section through a second seal for sealing a body of a motor vehicle before attachment to a body frame;
  • 4 the cross-section according to 3 after attachment to the body frame;
  • 5 a cross section through a third seal for sealing a body of a motor vehicle before attachment to a body frame, and
  • 6 the cross-section according to 5 after attachment to the body frame.
  • The in the 1 to 6 illustrated seals 10 are used, for example, for sealing a movable component with respect to the bodywork of a motor vehicle and extend along a region of the body on which the movable component bears in the closed state. The movable component may be a motor vehicle door or a tailgate.
  • All in the 1 to 6 shown seals 10 have for this purpose a sealing portion 20 auf, which is extruded from an elastically deformable material, such as EPDM. The sealing section 20 includes in all cases a hollow chamber 22 , which has a high deformability of the sealing portion 20 and thus ensures a reliable sealing effect. Furthermore, the seals include 10 in each case a fastening section produced by coextrusion 30 for fixing the seals 10 at the check series.
  • According to the 1 and 2 is the attachment section 30 in cross-section substantially U-shaped and has along the peripheral surface an inner side 31 and an outside 32 on. The attachment section 30 includes a first attachment leg 33 , a second fastening leg 34 and a first attachment leg 33 and the second attachment leg 34 interconnecting base 35 on. The two attachment legs 33 . 34 are arranged to each other so that they have a receiving channel 36 for receiving a rigid component in the form of a frame 50 to form the body. In the present case, the frame indicates 50 two flanges 52 . 54 on.
  • To the rigidity of the attachment section 30 increase is a reinforcing carrier 39 in the attachment section 30 embedded, which is essentially parallel to the outside 32 extends. The reinforcement beam 39 may be provided with apertures to a certain deformation of the reinforcing member 39 to enable.
  • Furthermore, both the first mounting leg 33 as well as the second attachment leg 34 on the inside 31 two retaining lips each 37 on that in the receiving channel 36 protrude and for non-positive attachment of the attachment portion 30 on the frame 50 serve. For fixing the seal 10 on the frame 50 that means at the two adjacent flanges 52 . 54 , the seal becomes 10 with the attachment section 30 so on the frame 50 put on that the attachment section 30 on the two flanges 52 . 54 is fixed. To allow the plugging, the retaining lips are 37 flexible to a certain extent, but exercise in the plugged state sufficient force for permanent attachment of the seal 10 to the frame 50 out.
  • Inside the recording channel 36 is in the area of the base 35 a sealant 40 on the inside 31 of the attachment section 30 applied. The sealant 40 consists of a polyurethane foam and is with the base 35 as well as sections with the attachment legs 33 . 34 cohesively connected. This connection region of the peripheral surface of the sealant 40 with the attachment area 30 is called the contact surface 41 designated. The in the receiving channel 36 directed, remaining portion of the peripheral surface of the sealant 40 is called a sealing surface 42 designated.
  • Near the connection areas of the mounting legs 33 . 34 to the base 35 is on the inside 31 of the first attachment leg 33 and the second attachment leg 34 one projection each 38 , The two projections 38 are opposite at about the same height and in the receiving channel 36 arranged projecting and serve as a centering cam to the attachment of the attachment portion 30 on the frame 50 to facilitate and a central arrangement of the attachment portion 30 on the frame 50 to reach. For this purpose, have the projections 38 an inclined guide surface. On the other hand, the projections allow 38 at least partially a stop of the sealant 40 at the base 35 , Furthermore, the projections 38 also for shaping the sealing compound area 40 be used.
  • During the assembly process of the seal 10 becomes the attachment section 30 so far on the frame 50 deferred until an end face 56 of the frame 50 with the sealing surface 42 the sealant 40 comes into contact and the sealing surface 42 towards the base 35 largely elastically impressed. However, it does not come to a bonding of sealant 40 and frame 50 , By partially impressing the frame 50 in the sealant 40 the desired sealing function is achieved. The deformation of the sealant occurring during pressing in 40 gets through the protrusions 38 at least partially controlled. In particular, prevent the projections 38 too strong lateral deflection of the sealant 40 , In other words, the sealant 40 at least slightly to a positive retention of the end of the frame 50 at the attachment portion 30 contribute. This support function also interacts with the protrusions 38 ,
  • In the reached after the Aufsteckvorgang final state (see 2 ) is a penetration of moisture or water (also called creep) from the outside of the motor vehicle to the inside of the motor vehicle through between the frame 50 and the attachment portion 30 introduced sealant 40 prevented.
  • The foam material is preferably a one-component polyurethane foam, but alternatively also a multi-component foam, for example a two-component foam. Such a foam material having a closed-cell structure provides both a sufficient sealing effect and an elastic deformability. The deformability allows at least partial pressing of the frame 50 to the sealant 40 without the frame 50 with the sealant 40 glued, in particular without the end face 56 at the sealing surface 42 sticking. Thus, the seal 10 several times on the frame 50 plugged and unplugged, especially without the frame 50 when peeling off with the sealant 40 dirty and must be cleaned as a result.
  • Based on the seal 10 according to the 1 and 2 The following is the method of making this seal 10 also on hand of the 1 and 2 be explained. In a first step, the seal 10 extruded, with the attachment section 30 and sealing section 10 be coextruded and in the attachment section 30 a reinforcement beam 39 is embedded.
  • In the second step, the polyurethane foam material is used as a sealant 40 in the area of the base 35 of the receiving channel 36 on the inside 31 of the attachment section 30 applied. For this purpose, the base plastic used for producing the foam material is first foamed by means of compressed air as a blowing agent. Subsequently, a predetermined amount of foam material is applied fully automated, wherein preferably such an amount of foam material is introduced that the foam entry from the base 35 until approximately at the height of the two projections 38 enough. The freshly applied foam glued to its contact surface 41 with the base 35 and in sections with the attachment legs 33 . 34 ,
  • In the next step, the curing of the foam material is carried out by a heat treatment by means of microwaves. For this purpose, the trained in the form of a sealing strip seal 10 continuously passed through a microwave oven in which a temperature in a range of about 80 ° C to about 120 ° C prevails. The microwaves activate the foam material of the sealant 40 but have no or negligible influence on the material properties and the external shape of the remaining components of the seal 10 that is on the sealing section 20 and the attachment section 30 , In this way, a rapid and continuous curing of the sealant 40 be achieved. After passing through the microwave oven, the sealing strip can finally be cut to length in the desired length, wherein there is no sticking or contamination of the cutting device or the end portions of the sealing strip.
  • In the following, the production method according to the invention based on the 3 to 6 be explained further.
  • In the embodiment according to the 3 and 4 become the sealing section 20 and the attachment section 30 for the formation of the hollow chamber 22 produced by coextrusion. The attachment section 30 includes two attachment legs 33 . 34 in the form of projections, wherein in the assembled state (see 4 ) of the attachment leg 33 a nose 59 of the flange 54 and the attachment leg 34 a groove 60 of the flange 52 engages behind. After coextrusion of sealing section 20 and attachment section 30 The foam material is polyurethane based on the outside of the base 35 applied in the form of a sealant strand along the longitudinal direction of the sealing strip. This is the sealant 40 cohesively with the attachment portion 30 connected. Subsequently, a curing of the sealant takes place 40 using microwaves in a continuous furnace. The residence time in this curing oven is chosen such that the outer sealing surface 42 is sufficiently elastically deformable, without causing a bond with the rigid component 50 , in particular the flange 52 can come.
  • The embodiment according to the 5 and 6 differs from the embodiment according to the 1 and 2 in particular, in that the attachment portion 30 an investment area 65 that covers the flange 52 directed side several depressions or recesses 66 having. Here are two recesses 66 each for receiving a sealant 40 in the form of a strand or a section bounded along the longitudinal direction. The sealing section 20 includes next to the hollow chamber 22 additionally two sealing lips 23 , The attachment leg 33 has two approaches 68 in the form of protrusions on which the flange 52 in the assembled state (see 6 ) is present. In addition, the attachment leg includes 34 a retaining lip 37 for non-positive reception of the flanges 52 . 54 in the receiving channel 36 ,
  • After coextrusion of sealing section 20 and attachment section 30 The foam material is based on polyurethane as a sealant 40 in the area of two recesses 66 of the investment area 65 on the attachment section 30 applied, leaving the sealant 40 cohesively with the attachment portion 30 connected is. Subsequently, again, a curing in a microwave oven according to the above statements.
  • The presented method leaves advantageously integrate readily into existing manufacturing processes. So can already existing extrusion devices in a simple way Application unit for applying the foam material, such as a nozzle, and a curing device, such as a microwave oven, be followed. On this way, overall, it becomes a continuous cycle process receive.
  • 10
    poetry
    20
    sealing section
    22
    hollow
    23
    sealing lip
    30
    attachment section
    31
    inside
    32
    outside
    33
    first fastening leg
    34
    second fastening leg
    35
    Base
    36
    receiving channel
    37
    retaining lip
    38
    head Start
    39
    reinforcing support
    40
    sealant
    41
    contact area
    42
    sealing surface
    50
    frame
    52
    flange
    54
    flange
    56
    face
    57
    outside
    58
    outside
    59
    nose
    60
    groove
    65
    plant area
    66
    recess
    68
    approach

Claims (6)

  1. Method for producing a seal extending in a longitudinal direction ( 10 ), in particular for a motor vehicle, the seal ( 10 ) an attachment portion ( 30 ) and a sealing section ( 20 ), wherein the attachment portion ( 30 ) on a rigid component ( 50 ) and wherein a sealant ( 40 ) for sealing a region between the rigid component ( 50 ) and the attachment section ( 30 ) and wherein the method comprises the steps of: a) extruding the seal ( 10 ); b) applying a polyurethane-based foam material as a sealant ( 40 ) on the attachment section ( 30 ), so that the sealant ( 40 ) cohesively or positively with the attachment portion ( 30 ) connected is; c) hardening of the sealant ( 40 ) at least to such an extent that the sealant ( 40 ) free of a material connection with the rigid component ( 50 ) sealingly against the rigid component ( 50 ) can be applied; wherein the foam material is heat treated for curing at a temperature of about 50 ° C to about 150 ° C and d) wherein the process steps a) to c) are carried out successively and in a continuous continuous process along the longitudinal direction.
  2. Method according to claim 1, characterized in that that the foam material is heat treated by means of microwaves becomes.
  3. Method according to one of claims 1 or 2, characterized that the foam material is heat treated at a temperature of about 80 ° C to about 120 ° C becomes.
  4. Method according to claim 1, characterized in that that the foam material is cured by means of UV light.
  5. Method according to one of claims 1 to 4, characterized that as a foam material, a one-component polyurethane foam or a two-component polyurethane foam is provided.
  6. Method according to one of claims 1 to 5, characterized in that in step a) the sealing portion ( 20 ) and the attachment section ( 30 ) are coextruded.
DE102007002946A 2007-01-19 2007-01-19 Method for producing a seal, in particular for a motor vehicle Expired - Fee Related DE102007002946B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007002946A DE102007002946B4 (en) 2007-01-19 2007-01-19 Method for producing a seal, in particular for a motor vehicle

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102007002946A DE102007002946B4 (en) 2007-01-19 2007-01-19 Method for producing a seal, in particular for a motor vehicle
EP08100601A EP1946951B1 (en) 2007-01-19 2008-01-17 Method for producing a seal, in particular for a motor vehicle, and such a seal
DE502008001222T DE502008001222D1 (en) 2007-01-19 2008-01-17 Method for producing a seal, in particular for a motor vehicle, and such a seal
PL08100601T PL1946951T3 (en) 2007-01-19 2008-01-17 Method for producing a seal, in particular for a motor vehicle, and such a seal
AT08100601T AT479571T (en) 2007-01-19 2008-01-17 Method for producing a seal, especially for a motor vehicle, and such a seal
ES08100601T ES2351538T3 (en) 2007-01-19 2008-01-17 Procedure for the manufacture of a shutter board, especially for a car, and a shutter board of this type.

Publications (2)

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DE102007002946A1 DE102007002946A1 (en) 2008-07-24
DE102007002946B4 true DE102007002946B4 (en) 2009-07-16

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DE502008001222T Active DE502008001222D1 (en) 2007-01-19 2008-01-17 Method for producing a seal, in particular for a motor vehicle, and such a seal

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DE502008001222T Active DE502008001222D1 (en) 2007-01-19 2008-01-17 Method for producing a seal, in particular for a motor vehicle, and such a seal

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EP (1) EP1946951B1 (en)
AT (1) AT479571T (en)
DE (2) DE102007002946B4 (en)
ES (1) ES2351538T3 (en)
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5568795B2 (en) * 2008-12-10 2014-08-13 西川ゴム工業株式会社 Weather strip for automobile
ES2391752B1 (en) * 2010-05-25 2013-10-14 Standard Profil Spain, S.A. System for manufacturing door sealing seals and door gasket obtained
FR3014764B1 (en) * 2013-12-17 2017-07-28 Peugeot Citroen Automobiles Sa Elastomer seal for opening of a motor vehicle having a u-section portion intended to be engaged on the openings of the opening

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GB1137770A (en) * 1965-09-07 1968-12-27 Goodyear Tire & Rubber Improvements in sealing strips for mounting panes or panels in windows
DE3627537A1 (en) * 1986-08-13 1988-02-18 Ver Glaswerke Gmbh Glass disc provided with an elastic sealing profile, in particular car glass disc
DE2924574C2 (en) * 1978-06-30 1993-05-06 Draftex Industries Ltd., Edinburgh, Midlothian, Gb
US5415822A (en) * 1988-11-21 1995-05-16 Schlegel U.K. Holdings Ltd. Manufacture of composite extrusions
DE19531167A1 (en) * 1995-08-24 1997-02-27 Baedje K H Meteor Gummiwerke Automotive sealing profile and method for its production
DE69606564T2 (en) * 1996-04-30 2000-09-14 Ilpea Ind Spa Sealing stripes in particular for window or door frames or the like
DE102004050777A1 (en) * 2004-10-19 2006-04-20 Bayerische Motoren Werke Ag Sealing profile for a vehicle door window, comprises a primary elastomer sealing region and a secondary sealing region connected to it
DE102005013005A1 (en) * 2005-03-21 2006-09-28 Metzeler Automotive Profile Systems Gmbh Motor vehicle`s body seal, has retaining lips arranged such that channel comprise closed volumes that are filled with adhesive, where lips are deformed for opening volumes, so that adhesive is distributed along mounting surface of flange

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US4308302A (en) * 1981-02-27 1981-12-29 The Goodyear Tire & Rubber Company Weatherstrip and composition of matter therefor
FR2579287B1 (en) * 1985-03-22 1989-04-21 Ouest Cie Tubular profile seal
US5013379A (en) * 1988-01-25 1991-05-07 Gencorp Inc. Cohesive bonding process for forming a laminate of a wear resistant thermoplastic and a weather resistant rubber
US5636895A (en) 1992-10-27 1997-06-10 Toyoda Gosei Co., Ltd. Seal structure for weather strip
EP1132242B1 (en) * 2000-03-06 2010-09-22 Toyoda Gosei Co., Ltd. Automobile trim and method for manufacturing the same
FR2824611B1 (en) 2001-05-09 2003-10-17 Metzeler Automotive Profile Waterproofing profile capable of embossing a projecting part of a structure, blank of this profile and method of positioning this blank on the projecting part
US20050123718A1 (en) * 2002-10-31 2005-06-09 Nordson Corporation Weather strip and method of manufacturing same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1137770A (en) * 1965-09-07 1968-12-27 Goodyear Tire & Rubber Improvements in sealing strips for mounting panes or panels in windows
DE2924574C2 (en) * 1978-06-30 1993-05-06 Draftex Industries Ltd., Edinburgh, Midlothian, Gb
DE3627537A1 (en) * 1986-08-13 1988-02-18 Ver Glaswerke Gmbh Glass disc provided with an elastic sealing profile, in particular car glass disc
US5415822A (en) * 1988-11-21 1995-05-16 Schlegel U.K. Holdings Ltd. Manufacture of composite extrusions
DE19531167A1 (en) * 1995-08-24 1997-02-27 Baedje K H Meteor Gummiwerke Automotive sealing profile and method for its production
DE69606564T2 (en) * 1996-04-30 2000-09-14 Ilpea Ind Spa Sealing stripes in particular for window or door frames or the like
DE102004050777A1 (en) * 2004-10-19 2006-04-20 Bayerische Motoren Werke Ag Sealing profile for a vehicle door window, comprises a primary elastomer sealing region and a secondary sealing region connected to it
DE102005013005A1 (en) * 2005-03-21 2006-09-28 Metzeler Automotive Profile Systems Gmbh Motor vehicle`s body seal, has retaining lips arranged such that channel comprise closed volumes that are filled with adhesive, where lips are deformed for opening volumes, so that adhesive is distributed along mounting surface of flange

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AT479571T (en) 2010-09-15
DE502008001222D1 (en) 2010-10-14
PL1946951T3 (en) 2011-04-29
ES2351538T3 (en) 2011-02-07
EP1946951A1 (en) 2008-07-23
EP1946951B1 (en) 2010-09-01
DE102007002946A1 (en) 2008-07-24

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